How many layers are in a bone

the two layered of compact bone and the interior spongy bone work together to protect the internal organs. if the outer layer of a crinal bone fracture, the brain is still protected by the intact by the intact inner layer

x = -6.5

explanation:

with this editor, you should be careful to put what you mean. 5/(2x - 7) = 3/(4x +14) is the way i will interpret it. cross multiply

5*(4x + 14) = 3*(2x - 7)       remove the brackets

20x + 70 = 6x - 21             add 21 to both sides

20x+ 70+21= 6x                 combine

20x + 91 = 6x                     subtract 20x

20x-20x+91=6x-20x           combine

91 = - 14x

x = - 91/14

x = - 6.5

take him to the hospital or close it up with stitches.

explanation:

because he needs . im 12 i dont know srry if wrong